Human-readable time marks in dmesg?

Corey Edwards tensai at
Tue Nov 10 08:56:53 MST 2009

Charles Curley wrote:
> The time markers in dmesg on Ubuntu and debian are in some sort of
> ordinal values, e.g. [77191.892312]. Is there a way to translate those
> into a time and date so I can correlate the entries with events?

I believe those are the number of seconds since boot, so you could
calculate it that way. Or by default dmesg logs to /var/log/kern.log so
you could look there and use the timestamps that syslogd adds.


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